All categories

2 years ago

If (a+b)=4 and ab=3 find the value of a3 +b3

Mathematics

1 answer:

elena-14-01-66 [18.8K]2 years ago

5 0

I think this might be the answer since (a+b) equals 4, and ab= 3. I'm not sure.
a3 + b3
= (4)3+4(3)
= 12+12
= 24

You might be interested in

Which of the following is true?

Oksana_A [137]

B is true

Step-by-step explanation:

because no number with them to lines can be a negative

4 0

2 years ago

Read 2 more answers

The wind force f on a sail varies jointly as the area a of the sail and the square of the wind speed w.

blondinia [14]

Answer:

122.5 lbs

Step-by-step explanation:

The relation between force, wind speed, and area can be written ...

f = ks²a

for some wind speed s and area a.

The constant of proportionality, k, can be found from the given data.

64.8 = k(18²)(500) . . . force in pounds, area in square feet, speed in mph

k = 64.8/(324×500) = 0.0004

Using the equation with the second set of data, we have ...

f = 0.0004(35²)(250) = 122.5 . . . . pounds

The force on the 250 square foot sail would be 122.5 pounds.

4 0

1 year ago

The graph below shows the length of Jutta's hair over a 6 month period. Each point represents a measurement at the beginning of

cestrela7 [59]

Her hair grew 3.6 inches between the beginning of March and the beginning of June

4 0

2 years ago

An arithmetic sequence is given below.

Mashcka [7]

Given that $a_1=24$ and $a_2=17$ , if $a_n$ is an arithmetic sequence, then the common difference between successive terms is $d=a_2-a_1=17-24=-7$ .

You then have

$a_2=a_1+d$
$\implies a_3=a_2+d=a_1+2d$
$\implies a_4=a_3+d=a_1+3d$
$\implies \cdots\implies a_n=a_{n-1}+d=\cdots=a_1+(n-1)d$

So the explicit formula for the $n$ th term is

$a_n=24-7(n-1)$

3 0

2 years ago

Can 6 fit into 36 and if so how many times

ratelena [41]

Yes.
This is the same thing as:
$\frac{36}{6} =6$

How many times can 6 go into 36?
6 times
Try:
6*6=36

So true.

Hope this helps! :D

6 0

3 years ago

Read 2 more answers

If (a+b)=4 and ab=3 find the value of a3 +b3​

If (a+b)=4 and ab=3 find the value of a3 +b3